Welding is a process of joining two or more metal pieces together by applying heat and pressure. There are different types of welding methods, such as arc welding, gas welding, resistance welding, and solid-state welding. Each method has its own advantages and disadvantages, depending on the application and the materials involved.
One of the most common and versatile welding methods is arc welding, which uses an electric arc to create a pool of molten metal between the workpieces. Arc welding can be further divided into different modes of metal transfer, such as short circuit, globular, spray, and pulse.
In this article, we will focus on pulse welding, a new technology that offers high-quality welding results with less heat input, less spatter, and less distortion. We will also introduce Megmeet's quick pulse welding technology and its pulse welding solutions.
I. What is Pulse Welding?
Pulse welding is a variation of arc welding that alternates between a high current (peak) and a low current (background). The high current produces a droplet of molten metal at the tip of the electrode, which is then transferred to the weld pool during the low current. This way, one droplet is delivered per pulse, resulting in a controlled and stable metal transfer.
Pulse welding can be used with both gas metal arc welding (MIG) and gas tungsten arc welding (TIG) processes. With MIG, the electrode is a consumable wire that is fed continuously through the torch. With TIG, the electrode is a non-consumable tungsten rod that creates an arc with the workpiece. In both cases, an inert or semi-inert gas is used to shield the arc and the weld pool from atmospheric contamination.
II. What are the Advantages of Pulse Welding?
Pulse welding has several advantages over conventional arc welding methods, such as:
Reduced heat input: Since the current is pulsed, the overall heat input to the workpiece is lower than in continuous arc welding. This reduces the risk of burning through thin materials, warping or cracking thick materials, and affecting the mechanical properties of heat-sensitive materials.
Reduced spatter: Spatter is the unwanted splashing of molten metal outside the weld pool. Spatter can cause defects in the weld appearance, and waste material, and require additional cleaning or grinding. Pulse welding reduces spatter by controlling the metal transfer and minimizing short circuits between the electrode and the workpiece.
Improved out-of-position welding: Out-of-position welding refers to welding in any position other than flat or horizontal. In these positions, gravity can affect the shape and stability of the weld pool, making it difficult to achieve a uniform and smooth weld bead. Pulse welding improves out-of-position welding by allowing higher deposition rates with less sagging or undercutting of the weld pool.
Enhanced dissimilar metal welding: Dissimilar metal welding refers to welding two or more metals with different physical and chemical properties. This can be challenging because of the differences in melting points, thermal expansion, electrical conductivity, and metallurgical compatibility. Pulse welding enhances dissimilar metal welding by avoiding intermetallic phases that can weaken the weld joint.
III. Megmeet Quick Pulse Welding Technology and Welders.
Megmeet Welding is a company that specializes in developing and manufacturing welding equipment and solutions for various industries and applications. As pulse welding machine also has certain disadvantages, especially in manual welding, resulting in welders not liking pulse welding machines, Megmeet invented quick pulse welding technology and relevant pulse welding machines.
Megmeet Quick Pulse Welding Technology: This is a new technology that combines and integrates the advantage of a DC welding machine and pulse welding machine and makes pulse welding feel like DC, and more fit for the use habit of first-line welding workers. Its welding speed improved by more than 20%, and it has the features of a lower arc, better concentration, deeper penetration, and stronger penetrability. View Quick Pulse: A Welding Technology More Suitable for Manual Welding.
Megmeet Pulse MIG Welders Artsen II and Pro Series: These are advanced pulse MIG welders that can weld carbon steel, stainless steel, aluminum, copper, and other metals with high efficiency and quality. They feature a digital control system that can adjust the pulse parameters automatically according to the wire diameter, material type, and thickness. They also have a synergic mode that can simplify the operation by selecting preset programs based on the application. View Megmeet Pulse MIG Welders: Artsen II, Pro & Plus Series Welders.
IV. Conclusion
Pulse welding is a new technology that offers high-quality welding results with less heat input, less spatter, and less distortion. It can be used with both MIG and TIG processes to weld various metals in different positions. Megmeet Welding is a company that provides pulse welding equipment and solutions for various industries and applications. If you are interested, you can contact us at: https://www.megmeet-welding.com/en/contacts.
